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Search found 7 matches

by Robertdul
Mon Apr 09, 2018 2:11 am
Forum: Shopping FAQ
Topic: About the ROckey200 Reader?
Replies: 1
Views: 6840

About the ROckey200 Reader?

Is the Rockey 200 Reader need to install drivers? If need, where can I download the driver?

Rockey200.png
by Robertdul
Fri Jun 16, 2017 3:15 am
Forum: Questions & Answers
Topic: SELECT command
Replies: 3
Views: 1929

Re: SELECT command

Just like this: // "some data " private static final byte[] somedata= new byte[] { (byte)0x47, (byte)0x72, (byte)0x65, (byte)0x65, (byte)0x74, (byte)0x69, (byte)0x6E, (byte)0x67, (byte)0x73, (byte)0x20 }; public void process(APDU apdu) { // Good practice: Return 9000 on SELECT if (selectin...
by Robertdul
Thu Jun 15, 2017 2:10 am
Forum: Questions & Answers
Topic: SELECT command
Replies: 3
Views: 1929

SELECT command

Can we override a select AID command and cause it to pass some data as response data? Thanks for any help.
by Robertdul
Tue Mar 21, 2017 2:24 am
Forum: Algorithm School
Topic: Error when decrypting with RSA algorithm
Replies: 2
Views: 2191

Error when decrypting with RSA algorithm

I am using RSA algorithm to encrypt data in my applet. But when I do the decryption, it gave prompt" Illegal Use Error". Could somebody help to point out the mistake in my code? Many thanks. Main section of my code: public class RSAsamp extends Applet{ byte[] rsaPublic = new byte[4]; byte[...
by Robertdul
Tue Dec 27, 2016 10:54 pm
Forum: Questions & Answers
Topic: ARQC
Replies: 1
Views: 2280

ARQC

Could anyone explain a little more simply about what is ARQC and how to generate ARQC?
Do you know the algorithm VISA and MasterCard uses to generate the ARQC? Thanks for your help in advance.
by Robertdul
Sat Sep 24, 2016 3:30 am
Forum: Questions & Answers
Topic: JCIDE- Great tool in java card field
Replies: 2
Views: 2036

JCIDE- Great tool in java card field

JCIDE is an excellent tool for java card developers.

Is this tool developed by JavaCardos team?
by Robertdul
Thu Sep 22, 2016 2:04 am
Forum: Questions & Answers
Topic: Get 6300 when sending APDU to card
Replies: 2
Views: 1897

Get 6300 when sending APDU to card

Hi, I have a java card supporting dual interface(contact and contactless). My applet can work fine on contact interface. But when I connect the card via contactless interface, I send SELECT command to my applet, I got 0x6300. Shall I do anything to contactless interface of the reader in order to let...
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